relationship of sinter in blast furnace coke rate

the sinter plant screens and in the blast-furnace bins, prove this point. Range of screen analyses, % Sample at +21n +1in —tin —kin Sinter plant 30-50 45-55 10-25 1-3 Blast-furnace bins 0'5-3 5'5-14 18-60 10-20 In addition to the low strength of the sinter, the sinter – nut coke interaction and behaviour during conveyor belt transportation and discharge: enhancing the productivity of large blast furnaces at high slag rates..201 n. singh, l. singh, a. singh, r. anand, m. ubayadullah blast furnace operation in rough times

Model Study of Blast Furnace Operation with Central Coke

Aug 02, 2019Blast furnace (BF) remains the dominant ironmaking process worldwide. Central coke charging (CCC) operation is a promising technology for stabilizing BF operations, but it needs reliable and quantified process design and control. In this work, a multi-fluid BF model is further developed for quantitatively investigating flow-thermal-chemical phenomena of a BF under CCC operation.

FIELD: ferrous metallurgy. SUBSTANCE: hearth is washed with washing agglomerate sintered from charge containing, wt %: fire scale, 82-84; iron-ore concentrate, 7.6-8.2; manganese ore, 4.3-4.6; crude fluxes (limestone-dolomite mixture), ≤ 4.0. Washing agglomerate is loaded into furnace by substituting ore components in 3 to 20 charges daily while ore to coke ratio is reduced by 5-10%.

Jul 27, 2020limestone is used to remove impurities in the furnace and the main impurity of the blast furnace is silica (sand and rock) which is silicon dioxide. silicon dioxide is a solid at furnace temperatures so it reacts with calcium oxide from the decomp

furnace's fuel consumption rate. Although the addition of a furnace pressure regulator would increase initial costs, it will further decrease the fuel consumption rate. An ignition furnace fuel consumption rate of 10Mcal/t-sinter or less (on a COG basis) can be achieved with greater certainly through the

Jul 27, 2020limestone is used to remove impurities in the furnace and the main impurity of the blast furnace is silica (sand and rock) which is silicon dioxide. silicon dioxide is a solid at furnace temperatures so it reacts with calcium oxide from the decomp

Index Terms— coke breeze, charcoal, sintering process

The productivity of the sinter machine at blast furnace yard (PB.F) was calculated according to the following equation[16]: PB.F = p * Ss (3) Where PB.F is the productivity of the sinter machine at blast furnace yard, expressed in ton/m2 per day, P is the

relationship amongst the variables and (b) apparent inter-relationship amongst the towards decrease in the coke rate of the furnace are outlined. Statistical Analysis of Performance Data The carbon rate, Y1, as response variable and independent variables X1 to X14 Avg. Temperature of hot blast (X13), K Specific sinter consumption (X1

The productivity of the sinter machine at blast furnace yard (PB.F) was calculated according to the following equation[16]: PB.F = p * Ss (3) Where PB.F is the productivity of the sinter machine at blast furnace yard, expressed in ton/m2 per day, P is the

Sintering is a thermal process (1300 1400 C) by which a mixture of iron ore, return fines, recycled products of the iron and steel industry (mill scale, blast furnace dusts, etc.), slag-forming elements, fluxes and coke are agglomerated in a sinter plant with the purpose of

productivity and coke rate respectively. However, the coke rate at RSP blast furnaces is still on the higher side and constant efforts are on to reduce the same to 580 kg/tonne of hot metal (presently running at 596 kg/THM) simultaneously aiming for 1.04 productivity (presently 0.96) (Figs. 2 and 3). The various parameters associated with blast

Up to now, you might use your Coke Oven Gas (COG) for the generation of heat and/ or electricity, with the associated problem of NO X emissions through fi ring. Composed of the reducing gases H 2, CH 4 and CO and thanks to its high calorifi c value of 1618 MJ / m 3, COG can substitute considerable amount of coke in your blast furnace operation.

The production rate of steel has sharply increased in the recent years [1]. However, the iron- and steel-making sector is one of the highest energy and carbon-consuming The ore based steel-making units like sintering, coke-making, and blast furnace (BF) facilities contribute together about 90% of the sector emission [4]. Recently, the

furnaces in China use metallurgical coke, and the coke rates vary between 500 - 630 kg/thm. Extensive innovations have been introduced in the Chinese Mini Blast Furnaces including: Injection of pulverized anthracite to the extent of 60 kg/thm, to bring down the coke rate by about 40 - 50 kg/thm.

STRATEGIES FOR THE PRODUCTION OF LOW SILICON AND

productivity and coke rate respectively. However, the coke rate at RSP blast furnaces is still on the higher side and constant efforts are on to reduce the same to 580 kg/tonne of hot metal (presently running at 596 kg/THM) simultaneously aiming for 1.04 productivity (presently 0.96) (Figs. 2 and 3). The various parameters associated with blast

Sinter is the primary feed material for making iron in a blast furnace. Sinter is created by mixing iron ore concentrate with several additives such as limestone and silica to control the chemistry and then igniting it at 1200C in a continuous belt-fed furnace.

May 29, 20121.2. Why sintering. Lead and zin metals are produced in blast furnace. In a blast furnace, ore, coke and flux are continuously supplied through the top of the furnace, while air (sometimes with oxygen enrichment) is blown into the lower section of the furnace, so that the chemical reactions take place throughout the furnace as the material moves downward.

furnaces in China use metallurgical coke, and the coke rates vary between 500 - 630 kg/thm. Extensive innovations have been introduced in the Chinese Mini Blast Furnaces including: Injection of pulverized anthracite to the extent of 60 kg/thm, to bring down the coke rate by about 40 - 50 kg/thm.

2.1. Blast Furnace Iron Making Blast furnace iron making process is the most used process among all the iron making processes. This is because blast furnace iron making has a high production rate and a very high degree of heat utilization (85-90%). This is because the blast furnace is an extremely

Iron processing - Iron processing - Iron making: The primary objective of iron making is to release iron from chemical combination with oxygen, and, since the blast furnace is much the most efficient process, it receives the most attention here. Alternative methods known as direct reduction are used in over a score of countries, but less than 5 percent of iron is made this way.

May 16, 2018Blast Furnace Lowest ever coke rate achieved through process improvement Controlling furnace hearth wear by suitable adjustment of casting practice and use of acoustic technology Kalinganagar Process Solid Waste Utilisation at Sinter Plant Solid wastes from Blast Furnaces, Steel Melt Shop and Hot

Usage of sinter in BF offers many advantages like utilisation of iron ore fines (which otherwise cannot be used directly in blast furnace as it will choke the furnace due to its fineness), reduction in coke rate etc. Iron ore sintering started in 1910 and it flourished in Sweden, South Africa, etc. where there was coke

Reduction in coke rate in blast furnaces; SINTERING PROCESS A Sinter Plant typically comprise the following sub-units as shown below. The raw materials used are as follows - Iron ore fines (-10 mm), coke breeze (-3 mm), Lime stone dolomite fines (-3mm) and other metallurgical wastes. The proportioned raw materials are mixed and moistened in a